Excellant&eacute; Blue Melamine Collection 3.125-Inch Mug/Cup, 7-Ounce, Blue, 12-Piece 3.125-Inch mug/cup - 7-Ounce - blue (comes in 12 pieces) Made out of 100-Percent non-toxic melamine material Comes in wide range of other colors: blue, white, Ivory, yellow, Adobe, and green It is dishwasher safe and National Sanitation Foundation (NSF) approved Not recommend for microwave or oven use, but able to withstand up to 212 degrees fahrenheit